Low oil pressure 300zx..why? - ZDriver.com

300ZX (Z31) Forums Dedicated to 84-89 ZCars otherwize known as the Z31's

LinkBack Thread Tools Search this Thread
Old 05-24-2002, 11:31 AM   #1
Posts: n/a
Low oil pressure 300zx..why?

Hi folks I'm a new member and I need some oppinions about possible causes for my problem.
I have a 1988 300zx turbo manual gearbox (almost 100k mileage) .Everything is fine except the oil pressure that stays in normal range (2-4bar) only when motor is cold.After the motor reaches the normal temperature ,the pressure goes very
low 1bar and even below and reaches 2 bar only at high Rpm.
The oil lamp is always off after starting and goes never on while motor is running so it's not so bad but I'm loosing very much torque when motor is hot (because of low oil pressure)
Has anybody any suggestions about possible causes,parts to being replaced or something?
I intend to build a Boost Controller and a Cone filter and I don't want to blow this motor .

  Reply With Quote
Old 05-24-2002, 11:58 AM   #2
Posts: n/a
Re: Low oil pressure 300zx..why?

Probably your oil pressure sending unit. No warning lights right?
It is a fairly cheap part... otherwise I'd say your oil pump is at fault

  Reply With Quote
Old 05-28-2002, 12:35 AM   #3
Posts: n/a
Re: Low oil pressure 300zx..why?

I'd bet it was the sending unit, it went bad on both my Zs. Had same problem, high pressure when cold, barely anything when warm...buddy had same problem too...I just replaced mine ($40) and it is much better now

  Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
oil pressure, help scottz280zx 280ZX (S130) Forums 4 07-21-2012 10:25 AM
WTF No Pressure FubarI33t 280ZX Brakes, Wheels, Suspension and Chassis 4 04-27-2010 08:45 PM
Oil pressure too low G00DHUM0R 300ZX (Z32) Forums 8 12-10-2002 06:18 PM
Low Oil Pressure p3n1swrinkle 240Z, 260Z, 280Z (S30) Forums 3 12-10-2002 04:38 AM
Oil pressure please help!! gaw13 300ZX (Z32) Performance / Technical 1 12-09-2002 03:43 PM


1988, 300, 300zx, 90, brakes, light, location, losing, low, normal, oil, pressure, sending, unit, z31, zx

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -7. The time now is 09:49 PM.

Copyright 2000 - 2014 ZDRIVER.COM All Rights Reserved.